Floating-reamer holder.



R. RAILTON;

FLOATING REAMER HOLDER.

APPLICATION FILED NOV. 5, l9l5.

Patented Sept. 5, 1916.

mmm Roberf Ro'alfon ,4 TTORNEYS srrns rarnnr ROBERT RAILTON, or VALLEYFALLS, anenn ISLAND.

FLOATING-HEATHER HOLDER.

Application filed November 5, 1915.

To all whom it may concern:

Be it known that 1, ROBERT RAILTON, a citizen of the United States, anda resident of Valley Falls, in the county of Providence and State ofRhode Island, have invented a new and Improved Floating-Reamer Holder,of which the following is a full, clear, and exact description.

My invention relates to an improved means whereby to support a reamer ina manner that it may freely float with a parallel movement in anydirection to properly aline with the hole to be reamed.

With my improved means the socket memherfor receiving the reamer floatsin a direction transverse to the spindle having guided movement on theface of the spindle and the socket has means therein which permits thefloating of the reamer in said socket in a direction t 'ansverse to thefloating movement of the socket member so that a parallel floatingmovement of the reamer is positively insured in any direction.

The invention will be more particularly explained in the specificdescription following.

Reference is to be had to the accompanying drawings forming part of thisspecification in which similar reference characters indicatecorresponding parts in all the views.

Figure l is a side elevation of a reamer holder embodying my invention;Fig. 2 is a sectional plan view on the line 22, Fig. 1; Fig. is a,transverse vertical section on the line 3 3, Fig. 1; and Fig. 4: is aperspective view of the floating socket member for receiving a reamer.

la carrying out my invention in practice, a spindle 10 is provided, theshank of which is adapted to be suitably secured in. a turret. The face11 of the spindle has a depression 12 which receives the base 13 of asocket member 14-. At the front of the face 11 of the spindle 1O guideplates 15 are secured at the top and bottom overlapping the base 13 ofthe socket member 1 1-, the inner edges of the said plates 15 beingreceived in grooves 16 formed in opposite sides of the socket member14:.

By the described arrangement the socket is guidingly held on the -faceof the spindle and is free to float thereon in a direction transverse tothe axis of the spindle. The floating movement is limited in both direc-Specificationof Letters Patent.

Patented Sept. 5, 1.916.

Serial No. 59,752.

tions by set screws 18, or equivalent means, provided. on the face 11 ofthe spindle at opposite sides.

In order to obtain the universal parallel floating support for thereamer 20, the shank thereof is received in an elliptical socket 19, themajor axis of which is at right angles to the direction of movement ofthe floating socket member 1a. A pin 21 extends through registering pinholes 22 in opposite sides of the socket member 14; and extends throughthe shank of the reamer 20 at the major axis of the socket 19.

' Universal floating movement is thus provided for the reamer and thecorrect alining of the reamer with the hole to be reamed can be effectedwith absolute accuracy and with great facility. Moreover, the universalfloating movement is provided for by means involving the minimum weight.

In the case of heavy reamers, off one inch or over in diameter, Iprovide a spring of su'llicient tension to overcome the weight of thereamer after it has entered the hole to be reamed. For this purpose ascrew plug 23 is provided on the socket member 14 at the underside andis formed with a pocket 2% which receives a spring 25 on the upper endof which the shank of the reamer 2O rests. In practice, the tension ofthe spring is such that it will tend to maintain the reamer slightlyabove the center of the socket 19 so that a slight pressure on thereamer will serve to depress the same to correctly aline with the holeto be reamed.

It is to be understood that they term spindle as applied to the element10 is used because it is the usual shop term employed to designate thispart and that it is not intended to limit the form of the device to thespindle shape shown since any other equivalent means to engage in a holeor socket in a turret or the like may be employed.

The provision of the oval socket prevents sidewise movement of thereamer in the socket, it being understood that the minor axis of theoval socket is such as to snugly receive the reamer, there being, inpractice, but one-thousandth of an inch difference between the diametersof the socket at the minor axis and the reamer. Thus, the improvedsocket insures a unidirectional play of the reamer, the advantage ofwhich is that when the reamer is entering the hole to be reamed, thetaper or lead of the reamer Will bring the slide in exact alinement Withthe hole.

Having thus described my invention I claim as new, and desire to secureby Letters Patent:

1. A holder for reamers including a spindle and a floating socket memberhaving guided movement on the spindle in a direction transverse to theaxis of the spindle and provided in the socket thereof with means tohold a reamer to float in said socket in a direction transverse to thedirection of movement of the socket member on the spindle.

2. A holder for reamers including a spindle, a socket member havingfloating guided movement on the spindle in a direction transverse to theaxis of the spindle, and a pin ranging across the socket of said membertransverse to the direction of movement of the socket member on thespindle, the said pin affording guided movement for a reamer lengthwiseof said pin.

3. A. holder for reamers including a spindle, a socket member havingfloating guided parallel movement on the spindle in a directiontransverse to the axis of the spindle, the socket of said member beingelliptical and having its major axis transverse to the direction ofmovement of the socket member on the spindle, there being means on thesocket member to secure the shank of a reamer and permit floatingmovement of said reamer in the direction of the major axis of thesocket.

a. A reamer holder including a spindle, guide means on the face of thespindle, a floating socket member retained by said guide means to floatin a direction transverse to the axis of the spindle, and adjustablestops on the spindle limiting the floating movement of the socket memberin both directions, said socket member having in the socket thereofmeans to support a reamer to float in a direction transverse to the movement of the said socket member on the spindle.

In a reamer holder, a socket member, means to support said socket memberto float in a direction transverse to its axis, and means to secure areamer in the socket of said member to float in a direction transverseto the movement of the said socket member.

6. A reamer holder and a floating socket member thereon, said memberhaving an elliptical socket and adapted to receive a reamer, the majoraxis of said socket being at right angles to the floating movement ofthe said member.

7. In a reamer holder, a floating socket member having an ellipticalsocket adapted to receive a reamer, the major axis of the socket beingat right angles to the floating movement of the said member, and a guidepin extending across the socket at the major axis thereof and adapted toextend through the transverse aperture of a reamer to'guidingly retainthe reamer for floating movement relatively to said socket member in thedirection of said axis.

8. In a reamer holder, a socket member adapted to receive a reamer andpermit a parallel transverse movement of the reamer in the socket, andspring supported by the socket and extending transversely into the borethereof in position to form a lateral rest for a reamer. v

9. In a reamer holder, a socket, a socket member adapted to receive areamer, means to secure a reamer in the socket and permit a verticalparallel movement of the reamer in the socket, and a spring in thebottom of the socket member and extending into the socket thereof tobear transversely against a reamer.

10. In a reamer holder, a socket member adapted to receive a reamer, ascrew plug in said reamer at the underside forming a pocket, and aspring in said pocket extending into the socket of said member to bearagainst a reamer.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

ROBERT vRAILTON.

lVi tnesses GEORGE A; CARR, CLARE ALMOND.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

